Silver Back is the go-to specialised technical recruiter of mobile, scarce talent for international new-industry construction projects. We don't just fill vacancies, we build careers. We believe our candidates are just as important as our clients, and when you partner with us, you get a dedicated team that champions your professional growth.

La experiencia que se espera de los solicitantes, así como las habilidades y cualificaciones adicionales necesarias para este trabajo, se enumeran a continuación.

Currently, we are recruiting for a Commissioning Mechanical Supervisor (m/w/d) for a major industrial project in Huelva, Spain . This role is critical to ensuring the safe, efficient, and quality-driven pre-commissioning and commissioning of all static and rotating mechanical equipment on site.

As Commissioning Mechanical Supervisor, you will lead field execution, oversee equipment run-ins and alignments, manage system walkdowns, and work closely with Construction, QA/QC, Vendor Representatives, and Completions teams to transition mechanical subsystems smoothly into operation.

Key Responsibilities

Mechanical Commissioning & Execution: Supervise day-to-day mechanical pre-commissioning and commissioning activities, including uncoupled motor runs, equipment alignment, shaft rotation checks, lubrication, and vibration monitoring. Static & Rotating Equipment: Oversee the preparation and trial operation of rotating equipment (pumps, fans, blowers, compressors) and static equipment (vessels, heat exchangers, filters) to verify operational readiness.

System Walkdowns & Punch Listing: Lead multidisciplinary mechanical walkdowns; identify, log, and manage punch list items to drive systems toward Mechanical Completion (MC) and Ready for Commissioning (RFC). Vendor & Sub-contractor Interface: Coordinate closely with Original Equipment Manufacturer (OEM)



vendor specialists and mechanical sub-contractors during site acceptance testing, equipment runs, and system sign-offs.

Safety & Permit-to-Work (PTW): Enforce strict site health and safety standards; raise and manage hot work, confined space entry, and mechanical isolation permits in line with project safety procedures. Documentation & Quality Sign-offs: Verify mechanical test packages, sign off on inspection test records (ITRs), and ensure vendor documentation, preservation logs, and redline drawings are complete for turnover packages.

Daily On-Site Coordination: Attend daily commissioning coordination meetings, review progress against schedule, and proactively resolve technical queries in the field.

Requirements

Experience:

Proven experience as a Mechanical Commissioning Supervisor, Rotating Equipment Lead, or similar field supervisor role on large-scale industrial, mining, energy, or metallurgical projects.

Technical Skills: Deep practical knowledge of static and rotating equipment commissioning, precision alignment, lubrication systems, dynamic testing, and system turnover processes (MC, RFC, RFSU). Competencies: Strong leadership and field management capabilities, sharp troubleshooting skills, and excellent communication skills to effectively coordinate across multidisciplinary teams. Languages: English proficiency is required; Spanish language skills are a strong asset given the project location. What's on Offer Competitive contract rate / strong package Accommodation provided Opportunity to work on a major international industrial project in Huelva, Spain Supportive, high-performing project environment Silver Back is an equal opportunities employer. We welcome applications from all qualified candidates regardless of age, disability, gender, gender identity or expression, marital or family status, race, colour, ethnic or national origin, religion or belief, or social orientation. xqbhyrx Mobilising today's talent to build the industry of tomorrow.

📌 Mechanical supervisor (Arenas de Iguña)
🏢 Silverback
📍 Arenas de Iguña